DE1908994U - MOVEMENT WITH SYNCHRONIZED MECHANICAL GEAR FOLDER. - Google Patents

Description

RArB 134549 -7.1264

HELIOWAIT WERKE Berlin-Charlottenburg,

Elektrizitäts-Aktiengesellschaft Wilmersdorfer Str. 39

PLA 62/8011

Movement with mechanical gear folder synchronized by a synchronous motor

innovation
The invention relates to a clockwork with a mechanical gear folder that is synchronized by an electric synchronous motor. E3 is known to provide a flexible coupling that releases itself below an inhibiting or accelerating impulse between the synchronous motor and the bath movement of the clock in such clockworks. This ensures that the clock can continue to run even if the mains voltage for the synchronous motor fails,

- 1 - Df / Kie

PM 9 / Hel. / 44

without the rotor of the motor being taken along by the clockwork must become. Another arrangement provides a tension-dependent arrangement between the synchronous motor and the gear train for the same purpose Coupling, which is completely released when the tension ceases. Allow all of these arrangements a further gear of the clock in the event of a mains voltage failure for the synchronous motor. But they all have the disadvantage that with larger G-angdiff erenzen between the movement of the pedal mechanism regulated by the mechanical gear folder and the speed of the synchronous motor are exerted by these stresses on the mechanical gear folder, the one Damage or blockage of this corridor folder can. In the latter pail, the clock would also come to a standstill in the presence of mains voltage.

innovation-This disadvantage is esliiiäiöigg according to a clockwork with eliminated by an electric synchronous motor synchronized mechanical gear folder by the fact that between the Part of the gear train, on which the synchronous motor acts, and the mechanical gear folder a limit force clutch is arranged that can only transmit a certain torque.

Such a limit force coupling can, for example, consist of a spring-loaded friction clutch exist. The limit force this clutch is expediently dimensioned so that the torque to be transmitted by it is not greater than that

PLA 9 / Hel. / 44

Moment of inertia of the gear folder.

! Price increases To a standstill with a clockwork according to the SxfiMioig e3 recommends to prevent this in the event of a power failure here, too, in a known manner, between the synchronous motor and the gear train, either a compliant one is involved excessive stress, a self-releasing coupling or a relay or the like if the Netzapa.nnung ceases to exist. Provide released coupling.

innovation
The SElinäKHg should be explained in more detail using the drawing

which is the schematic of an embodiment of a.

clock electrically synchronized by a synchronous motor

innovation

Work according to the 2bd £ ±] a: ± & ng represents. This is where the synchronous motor is with M, the spring mechanism with F and the display means, which can either be a pointer mechanism or time slices, denoted by Z; B is the watch's mechanical gear folder. The synchronous motor M, which is expedient in a manner known per se at the same time concerned with the winding of the spring F via a slip clutch R, it engages through the line of action 1 indicated gear at a suitable point of the gear train 2 of the clock, for example on the seconds shaft 3

and thus has a synchronizing effect on the mechanical new gear rungs folder E. B30ßdxa $ £ ms3 <is now between this part of the Gear train, on which the synchronous motor acts, and the mechanical gear folder E, a limit force clutch G is provided. For example, the climb rate of the

_ ¹ Z _

t- / PIA 9 / Hel. / 44

Gear folder or · daa driven by this fourth wheel loosely arranged on its shaft and via a friction clutch with a defined maximum transmission torque be connected to her. This limit force coupling has the effect that with larger gear differences between the synchronous motor and mechanical gear folder the limit force clutch can slide. On the one hand, there are excessive loads kept away from the mechanical gear folder by the motor, so that damage or jamming or jamming of the aisle folder is not to be feared. On the other hand, the rate of the watch is even when it is locked mechanical gear folder is not impaired, as they then continue to run solely under the action of the synchronous motor can.

In the illustrated embodiment, there is still one between the motor and the fourth wheel J in the course of the transmission 1 Coupling K is provided, which is released by a relay Rs when the mains voltage for the motor drops out. Instead of one such a voltage-dependent coupling can also be a Another arrangement can be provided that allows the clockwork to continue running when the engine is stopped.

4 sayings
1 figure

-A-

Claims (4)

PLA 9 / Hel. / 44 protection 2xax4xgxHxi require 1. Movement with an electric synchronous motor synchronized mechanical gear folder, characterized in that between the part of the gear train on the the synchronous motor acts, and a limit force clutch is arranged in the mechanical gear folder. 2. Clockwork according to claim 1, characterized in that the maximum of the limit force coupling to be transmitted Torque equal to the moment of inertia of the mechanical Aisle folder is. 3 · clockwork according to claim 1, characterized in that A flexible coupling is arranged between the synchronous motor and the gear train of the clock in a manner known per se is. 4. Clockwork according to claim 1, characterized in that between the synchronous motor and gear train in a known per se Way, a clutch is arranged that is released when the mains voltage drops.